Though she turned 80 this year, Yoko Ono shows no signs of slowing down. As her conversation with PopMatters reveals, her career continues to explore new territory -- and defy all expectations.

Bon Iver sings about robot dogs. Nick Cave does a wicked Tom Waits impression. Erykah Badu covers Roberta Flack... in space. Even with its flaws, it's hard to think of a more memorable disc released this year than Heady Fwends.